From 1688b7c17941c92e133a3997ebbbf4a8c219a413 Mon Sep 17 00:00:00 2001
From: Carter Nelson <caternuson@gmail.com>
Date: Fri, 1 Oct 2021 06:13:24 -0700
Subject: [PATCH] Fix analogWidth for ESP32S2 in esp32-hal-adc.c (#5711)

---
 cores/esp32/esp32-hal-adc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/cores/esp32/esp32-hal-adc.c b/cores/esp32/esp32-hal-adc.c
index 0530f1d8..9387ec69 100644
--- a/cores/esp32/esp32-hal-adc.c
+++ b/cores/esp32/esp32-hal-adc.c
@@ -37,7 +37,7 @@ static uint8_t __analogVRefPin = 0;
 #include "soc/rtc_io_reg.h"
 #elif CONFIG_IDF_TARGET_ESP32C3
 #include "esp32c3/rom/ets_sys.h"
-#else 
+#else
 #error Target CONFIG_IDF_TARGET is not supported
 #endif
 #else // ESP32 Before IDF 4.0
@@ -46,7 +46,11 @@ static uint8_t __analogVRefPin = 0;
 #endif
 
 static uint8_t __analogAttenuation = 3;//11db
-static uint8_t __analogWidth = 3;//12 bits
+#if CONFIG_IDF_TARGET_ESP32S2
+static uint8_t __analogWidth = 4; // 13 bits
+#else
+static uint8_t __analogWidth = 3; // 12 bits
+#endif
 static uint8_t __analogClockDiv = 1;
 static adc_attenuation_t __pin_attenuation[SOC_GPIO_PIN_COUNT];